What level of subtasks can be created in Redmine?

Question

Project management

Actually the subject, you need to know to what level you can create subtasks for the main tasks, i.e. let's say the task:
you need to purchase an excavator
subtasks will be:
determine a list of options
call sellers
agree on the most favorable conditions
to buy a car
* each subtask can have more subtasks, I would like to know how many of these subtasks-subtasks can be and how many subtasks of the same level can be in general?

Answer 1

20 stops
is definitely possible, I think more is possible, it’s just that such a “decomposition” is a bit contrary to common sense
; there are milestones, plans, deadlines in work, and if subtasks breed like rabbits ...

Answer 2

Depends on the roles and the number of performers.